Date: Mon, 14 May 2018 01:22:44 +0100 From: RW <rwmaillists@googlemail.com> To: freebsd-questions@freebsd.org Subject: Re: swapfile question Message-ID: <20180514012244.74822866@gumby.homeunix.com> In-Reply-To: <CAFuo_fxUspphdS3eiX99gzkesDxuZw%2BVbxHbfZj7phEPvr-C_w@mail.gmail.com> References: <09eab1d4-3dd8-3530-bdbf-b436ec6aeeed@zyxst.net> <CAFuo_fxUspphdS3eiX99gzkesDxuZw%2BVbxHbfZj7phEPvr-C_w@mail.gmail.com>
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On Sat, 12 May 2018 08:39:52 -0700 Waitman Gobble wrote: > I use Warren Block's SSD setup and create swap file, seems to work > A-OK. > > http://www.wonkity.com/~wblock/docs/ Swap files are certainly more flexible, but I think the argument about TRIM is wrong. My understanding is that to UFS the swap activity on a swap file is just reads and writes in the file. Short of deleting the file I don't think you would get any trims. From that perspective swap files are slightly worse because when you create the file with dd you are telling the SSD that all of it holds data.
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